﻿//Copyright (c) 2007-2012, Adolfo Marinucci
//All rights reserved.

//Redistribution and use in source and binary forms, with or without modification, are permitted provided that the 
//following conditions are met:

//* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

//* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following 
//disclaimer in the documentation and/or other materials provided with the distribution.

//* Neither the name of Adolfo Marinucci nor the names of its contributors may be used to endorse or promote products
//derived from this software without specific prior written permission.

//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
//INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
//IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
//EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
//STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
//EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Controls;
using System.Windows;
using AvalonDock.Layout;

namespace AvalonDock.Controls
{
    public class LayoutPanelControl : LayoutGridControl<ILayoutPanelElement>, ILayoutControl
    {
        internal LayoutPanelControl(LayoutPanel model)
            :base(model, model.Orientation)
        {
            _model = model;

        }

        LayoutPanel _model;

        protected override void OnFixChildrenDockLengths()
        {
            var modelAsPositionableElement = _model as ILayoutPositionableElementWithActualSize;
            #region Setup DockWidth/Height for children
            if (_model.Orientation == Orientation.Horizontal)
            {
                if (_model.ContainsChildOfType<LayoutDocumentPane, LayoutDocumentPaneGroup>())
                {
                    for (int i = 0; i < _model.Children.Count; i++)
                    {
                        var childContainerModel = _model.Children[i] as ILayoutContainer;
                        var childPositionableModel = _model.Children[i] as ILayoutPositionableElement;

                        if (childContainerModel != null &&
                            (childContainerModel.IsOfType<LayoutDocumentPane, LayoutDocumentPaneGroup>() ||
                             childContainerModel.ContainsChildOfType<LayoutDocumentPane, LayoutDocumentPaneGroup>()))
                        {
                            childPositionableModel.DockWidth = new GridLength(1.0, GridUnitType.Star);
                        }
                        else if (childPositionableModel != null && childPositionableModel.DockWidth.IsStar)
                        {
                            var childPositionableModelWidthActualSize = childPositionableModel as ILayoutPositionableElementWithActualSize;

                            var widthToSet = Math.Max(childPositionableModelWidthActualSize.ActualWidth, childPositionableModel.DockMinWidth);
                            widthToSet = Math.Min(widthToSet, modelAsPositionableElement.ActualWidth / 2.0);
                            widthToSet = Math.Max(widthToSet, childPositionableModel.DockMinWidth);
        
                            childPositionableModel.DockWidth = new GridLength(
                                widthToSet,
                                GridUnitType.Pixel);
                        }
                    }
                }
                else
                {
                    for (int i = 0; i < _model.Children.Count; i++)
                    {
                        var childPositionableModel = _model.Children[i] as ILayoutPositionableElement;
                        if (!childPositionableModel.DockWidth.IsStar)
                        {
                            childPositionableModel.DockWidth = new GridLength(1.0, GridUnitType.Star);
                        }
                    }
                }
            }
            else
            {
                if (_model.ContainsChildOfType<LayoutDocumentPane, LayoutDocumentPaneGroup>())
                {
                    for (int i = 0; i < _model.Children.Count; i++)
                    {
                        var childContainerModel = _model.Children[i] as ILayoutContainer;
                        var childPositionableModel = _model.Children[i] as ILayoutPositionableElement;

                        if (childContainerModel != null &&
                            (childContainerModel.IsOfType<LayoutDocumentPane, LayoutDocumentPaneGroup>() ||
                             childContainerModel.ContainsChildOfType<LayoutDocumentPane, LayoutDocumentPaneGroup>()))
                        {
                            childPositionableModel.DockHeight = new GridLength(1.0, GridUnitType.Star);
                        }
                        else if (childPositionableModel != null && childPositionableModel.DockHeight.IsStar)
                        {
                            var childPositionableModelWidthActualSize = childPositionableModel as ILayoutPositionableElementWithActualSize;

                            var heightToSet = Math.Max(childPositionableModelWidthActualSize.ActualHeight, childPositionableModel.DockMinHeight);
                            
                            heightToSet = Math.Min(heightToSet, modelAsPositionableElement.ActualHeight / 2.0);
                            heightToSet = Math.Max(heightToSet, childPositionableModel.DockMinHeight);

                            childPositionableModel.DockHeight = new GridLength(heightToSet, GridUnitType.Pixel);
                        }
                    }
                }
                else
                {
                    for (int i = 0; i < _model.Children.Count; i++)
                    {
                        var childPositionableModel = _model.Children[i] as ILayoutPositionableElement;
                        if (!childPositionableModel.DockHeight.IsStar)
                        {
                            childPositionableModel.DockHeight = new GridLength(1.0, GridUnitType.Star);
                        }
                    }
                }
            }
            #endregion
        }

    }
}
